Traction at: When the lawn is wet or the plot is inclined with many slopes and slopes, the spikes give better Traction to the robot lawn mower without digging into the lawn. Our m - type robotic nails for worx landroid prevent robotic mowers from digging and leaving them on the lawn.ns are stainless and therefore durable. Dimensions: 205 x 2.5mm. In addition, 12 stainless steel screws are included. Wide Compatibility: With a 205mm wheel, the picks can be used for all S and M models of Landroid mower. S300 [WR130E]; M500 [WR141E]; M700 [WR142E]; M1000 [WR143E]; S450i [WR101SI]; S450i [WR102SI]; S500i [WR105SI]; S4. 50i [WR106SI]; S700i [WR101SI]; M800i [WR111MI]; M800i [WG757E]; M900 [WG758E]; M1000i [WG796E.1]; M1200i ID B [WR113MI]; 500 2 .0 [WR165E]; Quality Materials: Our cleats are made of stainless steel. The advantage of the material is that the nails do not rust and are therefore durable. Dimensions 205mm x 2.5mm. Additionally, 12 stainless steel screws are included. Easy to install, beautiful and healthy lawn: Simply place the spikes in the center of the wheel and secure them with the included screws. The high quality spikes guarantee a beautiful lawn. By driving the landroid worx robot lawn mower, there are no more holes in the lawn.